Water Sanitation and Health
Our vision and mission are the attainment by all peoples of the lowest possible burden of water and sanitation-related disease through primary prevention.

Water safety and quality

Water safety and quality are fundamental to human development and well-being. Providing access to safe water is one of the most effective instruments in promoting health and reducing poverty.


As the international authority on public health and water quality, WHO leads global efforts to prevent transmission of waterborne disease. This is achieved by promoting health-based regulations to governments and working with partners to promote effective risk management practices to water suppliers, communities and households.

Highlights

Compendium of drinking-water systems and technologies from source to consumer

Safe and reliable drinking-water supply depends on effective risk management, appropriate regulation and support, and well-informed technology selection....

Guidelines for drinking-water quality: small water supplies

Small drinking-water supplies commonly experience operational, managerial, technical and resourcing challenges that impact their ability to deliver safe...

Guidelines for drinking-water quality: fourth edition incorporating the first and second addenda

The fourth edition incorporating the first and second addenda, of the World Health Organization’s (WHO) Guidelines for drinking-water quality (GDWQ)...

Documents

wsp training package cover
This training package provides practical, step-by-step guidance to support the development and sustainable implementation of water safety plans (WSPs)...

Other relevant publications

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Air quality monitoring for enhanced understanding of health impacts and beyond

Monitoring air quality (for example collecting continuous and quality data) is integral and critical to detecting air pollutants and to ensuring information...

WHO water, sanitation, hygiene and waste strategy 2026-2035

Unsafe water, sanitation and hygiene (WASH) still drive at least 1.4 million preventable deaths each year, while climate shocks, outbreaks, migration...

Maternal mortality in fragile and conflict-affected situations: technical brief

This brief aligns the latest maternal mortality estimates with whether a country is conflict-affected or considered institutionally fragile. Nearly...

Mainstreaming antimicrobial resistance into primary health care: international workshop report

The Asia-Europe Foundation (ASEF) and the World Health Organization (WHO) organized an international workshop from 18 to 20 March 2025 in Bangkok, Thailand,...

WHO malaria terminology 2025, Third edition

In recent years, there has been a proliferation of new terms in relation to malaria in scientific literature, technical reports and the media. Concurrently,...

Report of the 18th FAO/WHO Joint Meeting on Pesticide Management, Geneva, Switzerland and online, 7-10 October 2025

The 18th Food and Agriculture Organization of the United Nations (FAO)/World Health Organization (WHO) Joint Meeting on Pesticide Management (JMPM) was...

Consolidated guidance on hepatitis B and C prevention, testing, treatment, service delivery and monitoring: an implementation handbook for a public health approach

This document consolidates, for the first time, WHO recommendations on the prevention, testing, treatment and monitoring of hepatitis B and C, and...

Summary of the Fortieth Meeting of the International Task Force for Disease Eradication (ITFDE) October 28-29, 2025

The 40th meeting of the International Task Force for Disease Eradication (ITFDE) was convened in a hybrid (in-person and virtual) format at The Carter...

Nurturing care and men’s engagement : thematic brief

This brief, aimed at policymakers and programme designers, explores what to consider when designing or adapting services to engage men in providing...